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1 Publications. In Press Levy, J.S., Fountain, A.G., O Connor, J.E., Welch, K.A., and Lyons, W.B., Garwood Valley, Antarctica: A new record of last glacial maximum to Holocene glacio-fluvial processes from the southern, coastal McMurdo Dry Valleys. GSA Bulletin. In Review Levy, J. S., Fountain, A. G., Gooseff, M. N., Barrett, J. E., VanTreese, R., Welch, K. A., Lyons, W. B., Nielson, U., Wall, D., Water track control of ecosystem structure in the Lake Hoare basin, Taylor Valley, Antarctica. Antarctic Science. In Prep. Peer-Reviewed Journal Articles Dickson, J.L., Head, J.W., Levy, J.S., and Marchant, D.R. Don Juan Pond, Antarctica: Seasonal near-surface CaCl 2 -rich brine transport feeding the most saline lake on Earth and implications for Mars. Scientific Reports, 3, doi: /srep01166 Gooseff, M.N., Barrett, J.E., and Levy, J.S. (2012) Shallow groundwater systems in a polar desert, McMurdo Dry Valleys, Antarctica. Hydrogeology Journal, 21, 1, Levy, J.S. (2012) How big are the McMurdo Dry Valleys?: Estimating ice-free area using Landsat image data, Antarctic Science, doi: /s Levy, J. S., Fountain, A. G., Welch, K., and Lyons, W.B. (2012) Hyper-saline wet patches in Taylor Valley, Antarctica. Geophysical Research Letters, 39, doi: /2012gl Levy, J. S. (2012) Hydrological characteristics of recurrent slope lineae on Mars: Evidence for liquid flow through regolith and comparisons with Antarctic terrestrial analogs. Icarus, 219, 1, 1-4. (Featured in Nature and Science: and ) Levy, J. S., Fountain, A. G., Gooseff, M. N., Welch, K., Lyons, W. B. (2011) Water Tracks and Permafrost in Taylor Valley, Antarctica: Extensive and Shallow Groundwater Connectivity in a Cold Desert Ecosystem, Geological Society of America Bulletin, v. 123, no , p Levy, J. S., Head, J. W., and Marchant, D. R. (2011) Gullies, Polygons, and Mantles in Martian Permafrost Environments: Cold Desert Landforms and Sedimentary Processes During Recent Martian Geological History, Geological Society, London, Special Publications 2011, 354, p Levy, J. S., Head, J. W., Dickson, J. L., Fassett, C, I., Morgan, G. A., and Schon, S. C. (2010) Identification of Gully Debris Flow Deposits in Protonilus Mensae, Mars: Characterization of a Water-Bearing, Energetic Gully-Forming Process. Earth and Planetary Science Letters, 294,

2 Levy, J. S., J. W. Head, and D. R. Marchant (2010) Concentric Crater Fill in the Northern Mid- Latitudes of Mars: Formation Processes and Relationships to Similar Landforms of Glacial Origin. Icarus, doi: /j.icarus Fassett, C. I., Dickson, J. L., Head, J. W., Levy, J. S., Marchant, D. R. (2010) Supraglacial and proglacial valleys on Amazonian Mars. Icarus, 208, 1, Levy, J.S., Marchant, D. R. and Head, J. W. (2009) Thermal contraction crack polygons on Mars: A synthesis from HiRISE, Phoenix, and terrestrial analog studies, Icarus, 206, 2, Levy, J. S., J. W. Head, and D. R. Marchant (2009), Cold and Dry Processes in the Martian Arctic: Geomorphic Observations at the Phoenix Landing Site and Comparisons with Terrestrial Cold Desert Landforms, Geophysical Research Letters, 36, 21, doi: / 2009GL (Featured as a Research Highlight in Nature, 462, doi: /462255c) Levy, J. S., Head, J. W., Marchant, D. R. (2009) Concentric Crater Fill in Utopia Planitia: Timing and Transitions Between Glacial and Periglacial Processes. Icarus, doi: / j.icarus Levy, J. S., Head, J. W., Marchant, D. R. (2009) Thermal Contraction Crack Polygons on Mars: Classification, Distribution, and Climate Implications from HiRISE Observations. JGR, 114, doi: /2008je Levy, J. S., Head, J. W., Marchant, D. R., Dickson, J. L., and Morgan, G. A. (2009) Geologically recent gully-polygon relationships on Mars: Insights from the Antarctic Dry Valleys on the roles of permafrost, microclimates, and water sources for gully flow. Icarus, doi: /j.icarus Levy, J. S., Head, J. W., Marchant, D. R., and Kowalewski, D. E. (2008) Identification of Sublimation-Type Thermal Contraction Crack Polygons at the Proposed NASA Phoenix Landing Site: Implications for Substrate Properties and Climate-Driven Morphological Evolution, Geophysical Research Letters, 35, L04202, doi: /2007GL Levy, J. S., Head, J. W., and Marchant, D. R. (2008), The role of Thermal Contraction Crack Polygons in Cold-Desert Fluvial Systems, Antarctic Science, doi: /s Levy, J. S., Head, J. W., and Marchant, D. R. (2007) Lineated Valley Fill and Lobate Debris Apron Stratigraphy in Nilosyrtis Mensae, Mars: Evidence for Phases of Glacial Modification of the Dichotomy Boundary. Journal of Geophysical Research, 112, doi: /2006je Kowalewski, D. E., Marchant, D. R., Levy, J. S., Head, J. W. (2006) Quantifying summertime sublimation rates for buried glacier ice in Beacon Valley, Antarctica, Antarctic Science, 18(3),

3 Levy, J. S., Marchant, D. R., and Head, J. W. (2006) Distribution and Origin of Patterned Ground on Mullins Valley Debris-Covered Glacier, Antarctica: The Roles of Ice Flow and Sublimation. Antarctic Science. 18, 3, p Levy, J. S. and Head, J. W. (2005) Evidence for remnants of ancient ice-rich deposits: Mangala Valles outflow channel, Mars. Terra Nova, 17, 6, p Note: Was featured as a Selected Paper article for Terra Nova. Book Chapters and Sections Levy, J. S. (2010) Patterned Ground, in Environments of McMurdo Sound, (eds.) Herried, B. and Isern, A. Bolger, Inc., Minneapolis, MN Note: Environments of McMurdo Sound is the NSF Office of Polar Programs guidebook for visiting dignitaries and guests. Conference Abstracts Levy, J.S. (2013) Tracking Antarctica s Brines: Soil as a Mediator of Groundwater and Ecosystem Processes in the McMurdo Dry Valleys. GSA South-Central Section Meeting. Abstract # Levy, J.S., Fassett, C.I., and Head, J.W. (2013) Estimating the Volume of Non-Polar Ice on Mars: Geometric Constraints on Concentric Crater Fill Along the Martian Dichotomy Boundary. LPSC44, Abstract #1013. Levy J.S., Fountain, A.G., Welch, K.A., Lyons, W.B. (2012) Water Track Control of Active Layer Thermal Properties and Ecosystem Structure in Taylor Valley, McMurdo Dry Valleys, Antarctica: Hydrological Connectivity Along Permafrost Hillslopes. Paper presented at the Scientific Committee on Antarctic Research Open Science Conference, Abstract #419, Portland, OR Levy J.S., Fountain, A.G., Welch, K.A., Lyons, W.B. (2012) Hyper-saline wet patches in Taylor Valley, McMurdo Dry Valleys: Groundwater formation in the absence of precipitation. Paper presented at the Scientific Committee on Antarctic Research Open Science Conference, Abstract #639, Portland, OR Levy, J.S., Fountain, A. G., Gooseff, M., Barrett, J., Wall, D., Nielson, U., Adams, B., and Lyons, W. B. (2012). Active Layer Processes in the McMurdo Dry Valleys, Antarctica: Decadal Trends and Experimental Responses to Changes in Soil Moisture, Tenth International Conference on Permafrost, Salekhard, Russia. Levy J.S. and Fountain, A.G. (2012) Hydrological characteristics of recurrent slope lineae on Mars based on time-resolved HiRISE analyses and comparisons with fluid flow through an Antarctic terrestrial analog. 43rd Lunar and Planetary Science Conference, #1029, The Woodlands, TX Levy J.S., Fountain, A.G., Nylen, T.N., Head, J.W., and Dickson, J.L. (2012) Rapid growth and decay of Mars-analog gullies in buried ice and sediment rich substrates: new views of gullies as disequilibrium landforms in Garwood Valley, Antarctica. Paper presented at the 43rd Lunar and Planetary Science Conference, #1100, The Woodlands, TX

4 Levy, J.S. and Fountain, A. G Antarctic Dry Valley Water Tracks and Permafrost Wet Patches: Ecosystem and astrobiological implications of water exchange between salts, soils, and the atmosphere in a Mars-analog cold desert. Fifth International Mars Polar Conference, Fairbanks, AK. Abstract #6054. Levy, J. S. and Fountain, A. G Permafrost water tracks in Taylor Valley, McMurdo Dry Valleys: extensive and shallow groundwater connectivity in a cold desert ecosystem. International Symposium on Antarctic Earth Sciences, Edinburgh, Scotland, July Fountain, A. G., Hoffman, M., Levy, J. S., Nylen, T H., and Lyons, W. Berry The hydrology of the McMurdo Dry Valleys, Antarctica, an energy-dominated system. International Symposium on Antarctic Earth Sciences, Edinburgh, Scotland, July Levy, J. S. and Fountain, A. G Water tracks in the McMurdo Dry Valleys, Antarctica: A permafrost-based hydrological system supporting complex biological and geochemical processes in a Mars-analog environment. Lunar and Planetary Science Conference 42, Abstract #1210, The Woodlands, TX, March Levy, J. S., Fountain, A. G., Nylen, T. H., Head, J. W. and Dickson, J. L Rapid growth of Mars-Analog Gullies in a Buried Ice Substrate: Gullies as a Disequilibrium Landform in Garwood Valley, Antarctica. Lunar and Planetary Science Conference 42, Abstract #1432, The Woodlands, TX, March Head, J. W., Mustard, J. F., Kreslavsky, M. A., Milliken, R. E., Marchant, D. R., Forget, F., Schon, S. C., Levy, J. S Mars in the current glacial-interglacial cycle: exploring an anomalous period in Mars climate history. Lunar and Planetary Science Conference 42, Abstract #1315, The Woodlands, TX, March 7-11 Levy, J. S Astrogeobiology sample return and in-situ science in Antarctica: Understanding trades between science objectives and operations across scientific disciplines. The Importance of Solar System Sample Return Missions to the Future of Planetary Science, The Woodlands, TX, March 5-6. Levy, J. S., & Fountain, A. G Thermal and Chemical Processes in Taylor Valley Permafrost: Redistribution of Nutrients and Water From Snow, Soil, and Ice-Table Sources, in Scientific Committee on Antarctic Research Open Science Conference XXI, Buenos Aires, Argentina, August 3-6. Levy, J. S., Head, J. W., Marchant, D. R Martian debris-covered glaciers: seeking "signs of life" in a ~100 My old deep-freeze, in Astrobiology Science Conference Abstract #5059, League City, TX, April Levy, J. S., Fountain, A. G., Head, J. W., Marchant, D. R Physical controls on Antarctic Dry Valleys permafrost geomorphology and soil ecosystem habitability: cold-desert processes and Mars astrobiological implications, in Astrobiology Science Conference (Abscicon), Abstract #5060, League City, TX, April Levy, J. S., Fountain, A. G., Head, J. W., and Marchant, D. R. (2010) Physical Controls on Antarctic Dry Valleys Permafrost Geomorphology and Soil Ecosystem Habitability: Cold- Desert Processes and Mars Astrobiological Implications, in 41st Lunar and Planetary Science Conference, Abstract #1055, The Woodlands, TX, March 1-5.

5 Levy, J. S., Head, J. W., Fassett, C. I., and Fountain, A. G. (2010) Candidate Volcanic Ice- Cauldrons on Mars: Estimates of Ice Melt, Magma Volume, and Astrobiological Implications, in 41st Lunar and Planetary Science Conference, Abstract #1054, The Woodlands, TX, March 1-5. Dickson, J. L., Head, J. W., Fassett, C. I., Levy, J. S., and Morgan, G. A. (2010) The Life Cycle of Young Gullies on Mars: Gullies as a Transient Product of Ice-rich Mantle Emplacement and Removal, in 41st Lunar and Planetary Science Conference, Abstract #1002, The Woodlands, TX, March 1-5. Morgan, G. A., Head, J. W., Marchant, D., Dickson, J., and Levy, J. (2010) Sources of Water for Gulley Formation in the Antarctic Dry Valleys: Multi-Year Analysis of Precipitation and Temperature in the South Fork of Upper Wright Valley and Implications for the Origin of Gullies on Mars, in 41st Lunar and Planetary Science Conference, Abstract #1043, The Woodlands, TX, March 1-5. Morgan, G. A., Head, J. W., Dickson, J. L., Marchant, D. R., and Levy, J. S. (2010) Gully Formation on Mars and Earth: The Transition from Glacial Activity to Gully Depositional Phases, in 41st Lunar and Planetary Science Conference, Abstract #1044, The Woodlands, TX, March 1-5. Fassett, C. I., Dickson, J. L., Head, J. W., Levy, J. S., and Marchant, D. R. (2010) Supraglacial and Proglacial Valleys on Amazonian Mars, in 41st Lunar and Planetary Science Conference, Abstract #1892, The Woodlands, TX, March 1-5. Levy, J. S., Head, J. W., and Marchant, D. R. (2009), Concentric crater fill in the northern midlatitudes of Mars: formation processes and relationships to lineated valley fill and lobrate debris aprons, in Geological Society of America Annual Meeting, Geological Society of America Abstracts with Programs, Vol. 41, No. 7, p. 69, Portland, OR, October Levy, J. S., Head, J. W., and Marchant, D. R. (2009), Phoenix Landing Site Geomorphology: Surface Stability and Implications for the Martian Latitude-dependent Mantle, in 40th Lunar and Planetary Science Conference, Abstract #1625, The Woodlands, TX, March Levy, J. S., Head, J. W., Marchant, D. R. (2009), Thermal Contraction Crack Polygons on Mars: Classification, Distribution, and Context for Phoenix from North and South Polar HiRISE Observations, in 40th Lunar and Planetary Science Conference, Abstract #1616, The Woodlands, TX, March Morgan, G. A., Head, J. W., Marchant, D. R., Dickson, J., Levy, J. (2009) The Effect of Varying Annual Snow Accumulation on Gully Formation in Antarctica: Comparisons Between `Wet' and `Dry' Seasons and Implications for Gully Formation on Mars. 40 th Lunar and Planetary Science Conference, Abstract #2331, The Woodlands, TX, March Levy, J. S., Head, J. W., Marchant, D. R. (2008), Mars thermal contraction crack polygon classification and distribution: Morphological characterization at HiRISE resolution, in 39th Lunar and Planetary Science Conference, Abstract #1171, League City, TX.

6 Levy, J. S., Head, J. W., Marchant, D. R. (2008), Origin and arrangement of boulders on the martian northern plains: assessment of emplacement and modification environments, in 39th Lunar and Planetary Science Conference, Abstract #1172, League City, TX. Levy, J. S., Head, J. W., Marchant, D. R., Dickson, J. L., Morgan, G. A. (2008), Gully-Polygon Interactions and Stratigraphy on Earth and Mars: Comparison of Cold-Desert, Near- Surface, Fluvial and Periglacial Processes, in Ninth International Conference on Permafrost, Fairbanks, AK. Levy, J. S., Head, J. W., Marchant, D. R., Dickson, J. L., Morgan, G. A. (2008), Late-stage gully modification on Mars: Polygonally-patterned ground, permafrost, and gully water sources, in Workshop on Martian Gullies, Abstract #8007, League City, TX. Morgan, G. A., Head, J. W., Marchant, D. R., Dickson, J. L., and Levy, J. S. (2008) Gully Formation and Evolution in the Antarctic Dry Valleys: Implications for Mars. Workshop on Martian Gullies, Abstract #8015, League City, TX, February 4-5. Morgan, G. A., Head, J. W., Marchant, D. R., Dickson, J., and Levy, J. S. (2008) Interaction Between Gullies and Lobate Debris Tongues on Mars and in the Antarctic Dry Valleys. 39 th Lunar and Planetary Science Conference, Abstract #2303, League City, TX, March Head III, J. W., D. R. Marchant, J. L. Dickson, J. S. Levy, and G. A. Morgan (2007), Slope streaks in the Antarctic Dry Valleys: Characteristics, candidate formation mechanisms, and implications for slope streak formation in the martian environment, 10th International Symposium on Antarctic Earth Sciences, extended abstract 177. Head III, J. W., D. R. Marchant, J. L. Dickson, J. S. Levy, and G. A. Morgan (2007), Transient streams and gullies in the Antarctic Dry Valleys: Geological setting, processes and analogs to Mars, 10th International Symposium on Antarctic Earth Sciences, extended abstract 151. Heldmann, J. L., Levine, J., Garvin, J., Beaty, D., Bell, M. S., Clancy, T., Cockell, C. S., Delory, G., Dickson, J., Elphic, R., Eppler, D., Fernandez-Remolar, D., Gruener, J., Head, J. W., Helper, M., Hipkin, V., Lane, M., Levy, J., Millikan, R., Moersch, J., Ori, G., Peach, L., Poulet, F., Rice, J., Snook, K., Squyres, S., Zimbelman, J. (2007) Interim Results from the MEPAG Human Exploration of Mars Science Analysis Group (HEM-SAG), LEAG Workshop on Enabling Exploration: The lunar outpost and beyond, Abstract #1371, Houston, TX, October 1-5. Dickson, J. L., Head, J. W., Marchant, D. R., Morgan, G. A., Levy, J. S. (2007), Recent gully activity on Mars: Clues from late-stage water flow in gully systems and channels in the Antarctic Dry Valleys, in LPSC 38, Abstract #1678. Head, J. W., Marchant, D. R., Dickson, J. L., Levy, J. S., Morgan, G. A. (2007), Mars Gully Analogs in the Antarctic Dry Valleys: Geological Setting and Processes, in LPSC 38, Abstract #1617, League City, TX. Head, J. W., Marchant, D. R., Dickson, J. L., Levy, J. S., Morgan, G. A. (2007), Slope streaks in the Antarctic Dry Valleys: Characteristics, candidate formation mechanisms, and

7 implications for slope streak formation in the martian environment, in 38th Lunar and Planetary Science Conference, Abstract #1935, League City, TX. Kowalewski, D. E., Marchant, D. R., Head, J. W., Levy, J. S. (2007), Modeling vapor diffusion in sublimation tills of the Antarctic Dry Valleys: Implications for the preservation of nearsurface ice on Mars, in 38th Lunar and Planetary Science Conference, Abstract #2143, League City, TX. Levy, J. S., Head, J. W., Marchant, D. R., Morgan, G. A., Dickson, J. L. (2007), Gully-Polygon interactions and stratigraphy on Earth and Mars: Sand-wedge polygons as part of colddesert, near-surface fluvial systems, in Seventh International Conference on Mars, Pasadena, CA. Levy, J. S., Head, J. W., Marchant, D. R. (2007) LVF/LDA Stratigraphy in Nilosyrtis Mensae, Mars: Evidence for Multi-Stage Glacial Activity. LPSC 38, Abstract #1338, League City, TX. Levy, J. S., Head, J. W., Marchant, D. R., Dickson, J. L, Morgan, G. A. (2007), Gully surface and shallow subsurface structure in the south fork of Wright Valley, Antarctic Dry Valleys: Implications for gully activity on Mars, in LPSC 38, Abstract #1728, League City, TX. Levy, J. S., Head, J. W., Marchant, D. R., Morgan, G. A., Dickson, J. L. (2007), Gully-Polygon interactions and stratigraphy on Earth and Mars: Sand-wedge polygons as part of colddesert, near-surface fluvial systems, in Seventh International Conference on Mars, Pasadena, CA. Morgan, G. A., Head, J. W., Marchant, D. R., Dickson, J. L., Levy, J. S. (2007), Gully formation on Mars: Testing the snowpack hypothesis from analysis of analogs in the Antarctic Dry Valleys, in LPSC 38, Abstract #1656, League City, TX. Head, J.W., D.R. Marchant, J. Dickson, J. Levy and G. Morgan (2007), Transient streams and gullies in the Antarctic Dry Valleys: Geological setting, processes and analogs to Mars, in Antarctica: A Keystone in a Changing World - Online Proceedings of the 10th ISAES, edited by A.K. Cooper and C.R. Raymond et al., USGS Open-File Report , Extended Abstract 151, 4 p. Head, J.W., D.R. Marchant, J.L. Dickson, J.S. Levy and G.A. Morgan (2007), Slope streaks in the Antarctic Dry Valleys: Characteristics, candidate formation mechanisms, and implications for slope streak formation in the Martian environment, in Antarctica: A Keystone in a Changing World - Online Proceedings of the 10th ISAES X, edited by A.K. Cooper and C.R. Raymond et al., USGS Open-File Report , Extended Abstract 177, 5 p. Prabhat, Fosberg, A., Morgan, G., Petro, N., Levy, J., and Head, J. W. (2006) Virtual field trip to Mars: Experiences with a virtual reality lab for undergraduate students. LPSC 37, Abstract #1319, League City, TX. Levy, J. S., and J. W. Head (2006), Evidence of low northern midlatitude (~33 N) valley glacier deposits along the dichotomy boundary: Nilosyrtis Mensae, Mars, in LPSC XXXVII, Abstract #1244, League City, TX.

8 Levy, J. S., and J. W. Head (2006), Lineated valley fill surface textures, Nilosyrtis Mensae, Mars: Comparison with analogous glacier surface textures in the Antarctic Dry Valleys, in LPSC XXXVII, Abstract #1245, League City, TX. Levy, J. S., Head, J. W., Marchant, D. R. (2005), Evidence for remnants of late Hesperian icerich deposits in the Mangala Valles outflow channel, in Lunar and Planetary Science XXXVI, Abstract #1329, League City, TX. Levy, J. S., Head, J. W., Marchant, D. R. (2005), The origin and evolution of oriented-network polygonally patterned ground: the Antarctic Dry Valleys as Mars Analogue, in LPSC XXXVI, Abstract #1334, League City, TX. Invited Papers Levy, J. S. and Fountain, A. G. (2011). Water Track Control of Active Layer Thermal Properties and Ecosystem Structure in the Lake Hoare Basin, Taylor Valley, Antarctica: Water, Carbon, and the Future of the Dry Valleys, AGU Fall Meeting. Levy, J. S. (2011) Antarctica: Recording and Experiencing Climate Change. The Way Ahead. In Press. Note: TWA is a trade publication for young geoscientists in the petroleum industry. Having the opportunity to explain both the record of climate change preserved in Antarctica, as well as the current effects of climate change on Antarctic ecosystems to this audience represented a unique challenge. Levy, J. S., Head, J. W., and Marchant, D. R. (2010) Gullies, Polygons, and Mantles in Martian Permafrost Environments: Cold Desert Landforms and Sedimentary Processes During Recent Martian Geological History, Geological Society of London, International Association of Sedimentologists Special Issue, p Levy, J. S., Head, J. W., Marchant, D. R. (2009) Thermal contraction crack polygons on Earth and Mars: classification, distribution, and implications for recent cold desert processes. American Geophysical Union Joint Assembly, Abstract #GA , Toronto, ON. Levy, J. S. (2007) Thermal contraction crack polygons on Earth and Mars: morphological analysis and climate implications, Eos Transactions of the American Geophysical Union, 88(52, Fall Meeting Supplement), Abstract P22A-04. Meeting Reports Levy, J.S., Lyons, W.B., and Adams, B.J. (2012) Meeting Report: Understanding terrestrial ecosystem response to Antarctic climate change. EOS, 94, 3, 33.

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